package com.meitianhui.convenitenbuy.zxing.activity;

import android.content.res.AssetFileDescriptor;
import android.graphics.Bitmap;
import android.media.AudioManager;
import android.media.MediaPlayer;
import android.media.MediaPlayer.OnCompletionListener;
import android.os.Bundle;
import android.os.Handler;
import android.os.Vibrator;
import android.view.LayoutInflater;
import android.view.SurfaceHolder;
import android.view.SurfaceHolder.Callback;
import android.view.SurfaceView;
import android.view.View;
import android.widget.FrameLayout;
import android.widget.ImageView;
import android.widget.TextView;

import com.google.zxing.BarcodeFormat;
import com.google.zxing.Result;
import com.meitianhui.convenitenbuy.R;
import com.meitianhui.convenitenbuy.base.BaseActivity;
import com.meitianhui.convenitenbuy.util.RxUtils;
import com.meitianhui.convenitenbuy.zxing.camera.CameraManager;
import com.meitianhui.convenitenbuy.zxing.decoding.CaptureActivityHandler;
import com.meitianhui.convenitenbuy.zxing.decoding.InactivityTimer;
import com.meitianhui.convenitenbuy.zxing.view.ViewfinderView;

import java.io.IOException;
import java.util.Vector;

public abstract class CaptureActivity extends BaseActivity implements Callback {

    private CaptureActivityHandler handler;
    private ViewfinderView viewfinderView;
    private boolean hasSurface;
    private Vector<BarcodeFormat> decodeFormats;
    private String characterSet;
    public InactivityTimer inactivityTimer;
    private MediaPlayer mediaPlayer;
    private boolean playBeep;
    private static final float BEEP_VOLUME = 0.10f;
    private boolean vibrate;
    private static final long VIBRATE_DURATION = 200L;
    private FrameLayout mainContainer;
    private ImageView mIvBack;
    private TextView mTvTitle;

    @Override
    protected void initView(Bundle savedInstanceState) {
        setContentView(R.layout.activity_zxing_capture);
        init();
        initId();
        initEvent();
    }


    private void init() {
        CameraManager.init(getApplicationContext());
        hasSurface = false;
        inactivityTimer = new InactivityTimer(this);
    }

    protected void initId() {
        mIvBack = getViewById(R.id.iv_zxing_back);
        mTvTitle = getViewById(R.id.tv_zxing_title);
        viewfinderView = getViewById(R.id.viewfinder_zxing);
        mainContainer = (FrameLayout) findViewById(R.id.container_zxing);
        LayoutInflater.from(this).inflate(setView(), mainContainer);
        RxUtils.bindEvents(mIvBack,this);
    }
    protected void setTitle(String title){
        mTvTitle.setText(title);
    }

    @Override
    public void call(View v) {
        super.call(v);
        if (v.getId()==R.id.iv_zxing_back)
            finish();
    }

    protected void initEvent(){

    }
    protected abstract int setView();

    @Override
    protected void onResume() {
        super.onResume();
        SurfaceView surfaceView = (SurfaceView) findViewById(R.id.sv_zxing_capture);
        SurfaceHolder surfaceHolder = surfaceView.getHolder();
        if (hasSurface) {
            initCamera(surfaceHolder);
        } else {
            surfaceHolder.addCallback(this);
            surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
        }
        decodeFormats = null;
        characterSet = null;
        playBeep = true;
        AudioManager audioService = (AudioManager) getSystemService(AUDIO_SERVICE);
        if (audioService.getRingerMode() != AudioManager.RINGER_MODE_NORMAL) {
            playBeep = false;
        }
        initBeepSound();
        vibrate = true;
    }

    @Override
    protected void onPause() {
        super.onPause();
        if (handler != null) {
            handler.quitSynchronously();
            handler = null;
        }
        CameraManager.get().closeDriver();
    }

    @Override
    protected void onDestroy() {
        inactivityTimer.shutdown();
        super.onDestroy();
    }

    //重新扫描
    protected void setReCapture() {
        try {
            SurfaceView surfaceView = (SurfaceView) findViewById(R.id.sv_zxing_capture);
            SurfaceHolder surfaceHolder = surfaceView.getHolder();
            initCamera(surfaceHolder);
            if (handler != null)
                handler.restartPreviewAndDecode();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }


    public void handleDecode(Result result, Bitmap barcode) {
        inactivityTimer.onActivity();
        playBeepSoundAndVibrate();
        String resultString = result.getText();
        receiveResult(resultString);
    }

    protected abstract void receiveResult(String result);

    private void initCamera(SurfaceHolder surfaceHolder) {
        try {
            CameraManager.get().openDriver(surfaceHolder);
        } catch (IOException ioe) {
            return;
        } catch (RuntimeException e) {
            return;
        }
        if (handler == null) {
            handler = new CaptureActivityHandler(this, decodeFormats,
                    characterSet);
        }
    }

    @Override
    public void surfaceChanged(SurfaceHolder holder, int format, int width,
                               int height) {
    }

    @Override
    public void surfaceCreated(SurfaceHolder holder) {
        if (!hasSurface) {
            hasSurface = true;
            initCamera(holder);
        }
    }

    @Override
    public void surfaceDestroyed(SurfaceHolder holder) {
        hasSurface = false;

    }

    public ViewfinderView getViewfinderView() {
        return viewfinderView;
    }

    public Handler getHandler() {
        return handler;
    }

    public void drawViewfinder() {
        viewfinderView.drawViewfinder();

    }

    private void initBeepSound() {
        if (playBeep && mediaPlayer == null) {
            // The volume on STREAM_SYSTEM is not adjustable, and users found it
            // too loud,
            // so we now play on the music stream.
            setVolumeControlStream(AudioManager.STREAM_MUSIC);
            mediaPlayer = new MediaPlayer();
            mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
            mediaPlayer.setOnCompletionListener(beepListener);

            AssetFileDescriptor file = getResources().openRawResourceFd(
                    R.raw.beep);
            try {
                mediaPlayer.setDataSource(file.getFileDescriptor(),
                        file.getStartOffset(), file.getLength());
                file.close();
                mediaPlayer.setVolume(BEEP_VOLUME, BEEP_VOLUME);
                mediaPlayer.prepare();
            } catch (IOException e) {
                mediaPlayer = null;
            }
        }
    }

    private void playBeepSoundAndVibrate() {
        if (playBeep && mediaPlayer != null) {
            mediaPlayer.start();
        }
        if (vibrate) {
            Vibrator vibrator = (Vibrator) getSystemService(VIBRATOR_SERVICE);
            vibrator.vibrate(VIBRATE_DURATION);
        }
    }

    /**
     * When the beep has finished playing, rewind to queue up another one.
     */
    private final OnCompletionListener beepListener = new OnCompletionListener() {
        public void onCompletion(MediaPlayer mediaPlayer) {
            mediaPlayer.seekTo(0);
        }
    };

}